Machine for washing- paper-stock



UNITED STATES PATENT OFFICE.I

HORACE W. PEASLEE, OF MALDEN'BRIDGE, NEW YORK.

MACHINE FOR WASHING PAIIER-STOCK.`

Specification forming part of Letters Patent No. 12,283, dated January 23, 1855; Ressued January4 l 8, 1856, No. 340. n I

To all whom t may concern:

Be it known that I, HORACE W. PEASLEE, of Malden Bridge, in the county of Columbia and State of New York, have invented certain new and useful Improvements in Machinery for Washing Paper-Stock; and I do hereby declare that the following is a full, clear, and exact description of the same, ref-v erence being had to the accompanying drawings, forming part of this specification, in,

whichvertical section through the center.

toward the entrance to the cylinder.

discharge end of the cylinder.

Similar letters of reference indicate cor-l responding parts in the several figures.

To enable others skilled in the art to makei and use my invention, I will proceed to de:

scribe its construction and operation.

tudinal stretchers.

in water.

nished outside with ways a, a which fit to grooves in rollers D, D, which are secured to shafts E, E, whose journals lit to bearings b, b, on the standards A, A. The rollers D, D, form bearings in which the cylinder is capable of rotating. A portion' c of each ring, C, passes through a circular opening in one of the standards A, A, in which it fits /very loosely so as not to produce friction, the

object of these portions of the ring being to bring the open ends lof the cylinder flush with,

or beyond the outer faces of the standards, and to keep the ends of the troughs which consist of parts of the standard, almost tightly closed, so that very little, if any, water escapes outside or around the cylinder. Each ring, C, is furnished with spur teeth all round to gear with one of two spur wheels on the driving shaft G, which works in ybearings on the standards, above the cylinf der, and receives rotary motion from any suitable motive agent, for the purpose of giving revolution to the cylinder. The cylinder is strengthened by longitudinal wooden strips c, c, which are close to the inner surface of the wire work, and serve to hold the hooks, or bent teeth el, d, which are made of steel with sharp points and are of such bent form that they will catch and carry up the rags or other stock, as they rise with the revolution of the cylinder, and will vdrop it as they severally rise to their highest g positions, as shown atrZ. d', in Figs. 3 and 4.

Figure 1, is a view of that end of the ma-I chine where the discharge of the washed stock takes place. Fig. 2, is a longitudinal"v Fig. 3, is a transverse vertical section looliiiig 1g. 4, is a transverse section looking toward thel inder where the stock is to be fed in there These hooks are arranged inl a spiral line winding severalv times around the cylinder as shown in Fig. 2, the direction of the spiral being such as will cause the stock to be carried from the end L, of the cylinder where it is fed in, to the'other end M, where it is discharged. At the end, L, of the cylis a chute H, secured to the standard A, and extending a short distance into the cylinder, as shown in Fig. 2. At the opposite end of the interior of the cylinder are the obliquecurb pieces,'K, K, of which there may be any desired number arranged at equal distances apart` and rmly bolted to the cylinder, extending from the inner edge of the part c, of the ring, C, a short distance into the cylinder, and being of such depth as to form a barrier to prevent the too free escape of lwater through the end of the cylinder. The spaces between the curb pieces form channels, and the ydirection of the obliquity, of the pieces is such that the washed stock which has arrived at that end of the cylinder rolls down the channels on the ascending side of the cylinder, and is thus discharged. y

The cylinder is kept constantly supplied with water which isthrown on the stock both as it enters the chute H, and, also, while it is being carried along the cylinder, from a pipe, O, which is furnished with a nozzle, N, which is so directed as to throw a stream directly on the stock as it is entering the cylinder, and which extends all along' the ascending side of the cylinder, and is perforated, to throw a number of smaller streams through the whole length ofjfthe `wire-work of the cylinder, to meet the stock supply of water is so controlled by cocks in the nozzle N, and perforated jet-pipe, O, and the escape from the trough so controlled by a sliding gate, P, at its bottom, that the cylinder is kept flooded only to about the level of the top edge of the lowest curb piece, K. The stock is fed in continuously by hand down the chute, H, in such quantities as to keep the cylinder about` one-third full, or in greater or less quantities as may be found desirable, and as soon as it enters is caught by the hooks, and carried up to meet Ithe jets which enter the ascending side of the cylinder from the pipe, O, after which by its continued ascent it is drained until it reaches the top of the cylinder and drops again into the water at the bottom to be again caught up and submitted again to similar operations which continue to be repeated until it is carried by reason of the spiral arrangement of the hooks, to the end, M, of the cylinder and in the end is discharged therefrom by being carried up among the oblique curb pieces to such a position that it will slide or roll down upon and between them. The washing operation may be repeated as often as necessary either in the same machine or different machines of the same construction.

The flooding of the cylinder may be further regulated by a slide at the lower part of the end M, by raising or lowering which the level of the water may be varied, and always kept above the level which would be allowed. The cylinder may revolve at the rate of about 15 or 20 revolutions per minute, but this may be varied as may be found desirable.

Instead of arranging the hooks spirally around the cylinder they may be arranged in rings, but in that case the cylinder will require to be placed at a slight inclination in order that the stock may be carried through by gravitation. The principal object of the spiral arrangement of the hooks is to avoid placing the cylinder in an inclined position, as when thus placed the water cannot be at the same level throughout but must be deepest at the discharge end where the curbs would require to be so high to prevent theescape of water, that proper facility for the discharge of stock would not be had.

The oblique curbs (K), it will be observed, are arranged in continuous and close succession around the discharge end of the cylinder, and the passages between them form, of themselves, channels (without the aid of additional spouts as in certain ore washing machines) to incline or discharge the washed stock beyond the range or travel of the discharge end of the cylinder, so that, the stock, leaving the cylinder, will not be caught up by the end of the cylinder in its rotation and the motion imparted to the stock by the cylinders rotation, inclining the stock to be discharged at one side, is neutralized by the oblique run given to the stock in the opposite direction down the channels formed by the curbs, whereby the stock is discharged toward the center of the trough in the' water therein and the accumulation of stock in the trough on and against the rising side of the cylinder, by the rub of the cylinder on the light stock, is counteracted. In addition, however, to these oliices or actions on the stock, of the oblique curbs (K), thev, in being arranged in continuous succession around the open discharge end of the cylinder, in no way interfere with or impede the constant and regular discharge of stock, thereby causing more general and uniform washing of the stock, and a regular or evenly continuous but slow escape or run of water out of the discharge end of the cylinder is insured, the curbs (K) acting as a barrier to the too free escape as described and causing a copious supply of water to be retained in the cylinder for the proper washing of the stock. Thus the uses and duties of the oblique curbs (K), arranged as described in continuous succession around the open dis. charge end of the cylinder, are important and numerous in the washing of the stock; and in checking the run of the water out of the discharge end of the cylinder, they control or limit the flow or travel of the stock vthrough the cylinder to a speed corresponding and in accordance with the discharging or conveying action of the cylinder itself or of the spiral arrangement specied of the elevating hooks (d), to enable the said hooks to grip the several portions of the stock, elevate the stock to the highest point of the cylinder to `drain and constantly subject the stock to such repeated action by the several hooks in succession as described, and whereby the stock is more thoroughly washed and cleansed. Were it not for the check given to the escape by the oblique curbs (K) the stock would be washed too rapidly out` of the cylinder for the full and regular action in succession of the elevating hooks (d) and a less copious and insutlicient supply of water to effect a thorough washing of the stock would be retained in the reticulated cylinder.

I do not claim as new the revolving screen cylinder and stationary trough, with or without elevating hooks or lifters'arranged spirally or otherwise in the cylinder for the purposes specified; nor yet, otherwise than as arranged and combined, the oblique curbs or pieces to direct the discharge from the cylinder, as such devices, differently arranged employed and combined, have before 4been used in ore washing machines: But

I do claim as new and useful In the washing of paper stock, the arstock through the cylinder to a speed in accordance With the conveying action of the cylinder or its elevating hooks (cl) as specitied, to insure the full and regular action of the hooks on the stock in the manner described; the Whole operating together as and for the purposes set forth.

HORACE W. PEASLEE.

Witnesses:

SETH DALEY, ASA P. SMITH.

[FIRST PRINTED 1913.] 

